FPCN39 CWLW 211400
SMOKE CONTROL FORECAST FOR BC AND YUKON ISSUED BY THE MOUNTAIN
WEATHER CENTRE OF ENVIRONMENT CANADA AT 7:00 AM PDT THURSDAY 20 JULY
2000 FOR TODAY.
VENTILATION INDICES AND MIXING HEIGHTS.
MIXING HEIGHTS IN METRES ABOVE SEA LEVEL.
AVERAGE WINDS IN KM/HR.
SUBTRACT 20 FROM THE VENTILATION INDEX IN VALLEYS IF THE MIXING
HEIGHT IS BELOW THE HEIGHT OF THE LOCAL HILLS.
SOUTHERN INTERIOR
*** TODAY *** *** TOMORROW ***
****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM *****
VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd
(m) (km/h) (m) (km/h) (m) (km/h)
FRSR CANYON 24/POOR 450 10 100/GOOD 2270 5 100/GOOD 2548 9
KAMLOOPS 26/POOR 563 14 75/GOOD 1871 5 100/GOOD 2399 7
OKANAGAN 23/POOR 606 13 89/GOOD 2024 10 100/GOOD 2972 7
CASTLEGAR 14/POOR 580 6 100/GOOD 3082 8 100/GOOD 2824 8
CRANBROOK 13/POOR 1030 2 97/GOOD 2828 3 100/GOOD 3338 10
REVELSTOKE 13/POOR 498 7 100/GOOD 2455 6 72/GOOD 1933 3
FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) :
900m 1800m 2700m
PENTICTON 0 0 NW 13 0 0
CRANBROOK 0 0 NW 19
CENTRAL INTERIOR
*** TODAY *** *** TOMORROW ***
****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM *****
VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd
(m) (km/h) (m) (km/h) (m) (km/h)
QUESNEL 35/FAIR 797 16 100/GOOD 2360 7 68/GOOD 2115 6
100 MILE 14/POOR 1042 4 68/GOOD 2597 6 79/GOOD 2700 6
WILLIAMS LK 16/POOR 1027 12 64/GOOD 2389 5 79/GOOD 2694 6
PUNTZI MNT 36/FAIR 1241 13 100/GOOD 3398 10 100/GOOD 2981 9
PR. GEORGE 31/POOR 904 17 100/GOOD 2544 16 54/FAIR 2148 2
BURNS LAKE 27/POOR 856 25 100/GOOD 1790 20 99/GOOD 2372 7
SMITHERS 100/GOOD 1188 17 100/GOOD 1502 18 100/GOOD 2116 6
FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) :
900m 1800m 2700m
PR. GEORGE W 31 W 31
SMITHERS SW 31 SW 39
NORTHERN BC/YUKON
*** TODAY *** *** TOMORROW ***
****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM *****
VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd
(m) (km/h) (m) (km/h) (m) (km/h)
FT NLSN 15/POOR 465 1 100/GOOD 2211 20 100/GOOD 2113 13
FT STJOHN 44/FAIR 916 28 100/GOOD 2800 32 100/GOOD 2262 16
WHITEHORSE 99/GOOD 1527 9 100/GOOD 1903 20 100/GOOD 1976 16
DAWSON 37/FAIR 710 10 100/GOOD 2717 17 100/GOOD 2511 20
WATSON LAKE 30/POOR 902 16 100/GOOD 2379 25 100/GOOD 2331 12
FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) :
900m 1800m 2700m
DEASE LAKE SW 24 SW 30
WATSON LAKE W 30 SW 28
WHITEHORSE SW 22 SW 19
MAYO 0 0 0 0
COAST
*** TODAY *** *** TOMORROW ***
****** 7:00 AM **** **** 4:00 PM ***** ***** 4:00 PM *****
VI MXG HT Wnd VI MXG HT Wnd VI MXG HT Wnd
(m) (km/h) (m) (km/h) (m) (km/h)
VANCOUVER 19/POOR 194 10 45/FAIR 272 8 26/POOR 291 11
FRASER VLY 20/POOR 284 9 44/FAIR 726 11 38/FAIR 678 9
SRN VRISL 26/POOR 207 15 45/FAIR 291 6 22/POOR 211 6
CNTRL VRISL 35/FAIR 298 13 78/GOOD 858 8 38/FAIR 556 7
NRN VRISL 24/POOR 290 8 53/FAIR 582 22 53/FAIR 448 23
TERRACE 79/GOOD 699 18 76/GOOD 887 12 100/GOOD 1650 7
STEWART 42/FAIR 319 17 62/GOOD 539 11 48/FAIR 711 6
FORECAST UPPER WINDS FOR THURSDAY AFTERNOON (WINDS IN KM/H) :
900m 1800m 2700m
VANCOUVER 0 0 0 0 0 0
SANDSPIT SW 40 SW 44 SW 48
PORT HARDY NW 9. W 19 SW 22
VENTILATION GUIDELINES:
0-33.....POOR
34-54.....FAIR
55-100.....GOOD.
VENTILATION INDICES NORMALLY DROP TO POOR AFTER SUNSET
END/
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